calaveras county sheriff's office now identifying the three people shot to death on saturday. 54-year-old phillip marshal from murpheys shot and killed his two teenaged sons, then killed himself. the teenage teens are mckale law, 14, and 17-year-old alex smashle this -- mckay -- makailia, 14 years old and then 17-year-old alex marshal. >>> chris kyle and his friend were shot and killed on saturday in text at a gun range. police think he may have been suffering from post-traumatic stress disorder. >> i don't know we'll ever know. he's the only one that knows that. at this point, he has not made any comments to law enforcement as to why he did it. >> kyle became best known for his book. it details his 160 sniper kills of insurgents in iraq. it may have been the most in america history. kyle dedicated limb self to helping veterans with post- traumatic stress disorder. >>> a missing tanker off the ivory coast of africa has probably been hijacked by pilots. officials think they hijacked the french taker. it was reported missing yesterday and that all 17 salors on board have been kidnapped. hijackings